MASS CALCULATIONS OF LIGHT QUARKONIUM, EXOTIC JPC=0+- HYBRID MESONS FROM GAUSSIAN SUM RULES ArticleHo J., Berg R., Harnett D., Steele T.G., Chen W.Physical Review D. Vol. 98. 2018. 096020 p..
MESON-HYBRID MIXING IN JPC=1 + + HEAVY QUARKONIUM FROM QCD SUM RULES ArticlePalameta A., Steele T.G., Harnett D.Physical Review D. Vol. 98. 2018. 074014 p..